[gnome-internet-radio-locator] Add documentation on Location services requirement for release 11.

[Ole Aamot <ole src gnome org>]

commit ef25559344f6d6843d2e7b3111bf4a199f110356
Author: Ole Aamot <ole gnome org>
Date:   Sat Jun 26 11:11:17 2021 +0200

    Add documentation on Location services requirement for release 11.

 NEWS              |  4 +++-
 help/C/intro.page | 12 +++++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index e6cd83a..46952f4 100644
--- a/NEWS
+++ b/NEWS
@@ -2,10 +2,12 @@
 Version 11.12
 =============
 
-Build
+Documentation
 
+       * GEOLOCATION (Close: Issue #27)
        * help/C/C.css: Remove unused files (Close: Issue #21)
        * help/C/fdl-appendix.xml: Remove unused files (Close: Issue #21)
+       * help/C/intro.page (Close: Issue #27)
        * help/C/jquery.js: Remove unused files (Close: Issue #21)
        * help/C/jquery.syntax.js: Remove unused files (Close: Issue #21)
        * help/C/yelp.js: Remove unused files (Close: Issue #21)
diff --git a/help/C/intro.page b/help/C/intro.page
index 728a406..20078e2 100644
--- a/help/C/intro.page
+++ b/help/C/intro.page
@@ -23,5 +23,15 @@
   stations from around the world by streaming over the Internet.</p>
 
   <media type="image" mime="image/png" src="media/gnome-internet-radio-locator-main.png" />
-  
+
+  <p>You must enable Location Services to run GNOME Internet Radio Locator.</p>
+
+  <p>To enable Location Services in GNOME 40, navigate to the Settings app
+  and choose Privacy/Location Services and make sure Location Services
+  is checked.</p>
+
+  <p>Alternatively, run the following command in a GNOME Terminal console:</p>
+
+  <code>gsettings set org.gnome.system.location enabled true</code>
+
 </page>